Lincoln Chafee's political career

Updated 1:40 PM ET, Wed May 6, 2015

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Photos:Lincoln Chafee's political career

Potential Democratic presidential candidate Lincoln Chafee, a former U.S. senator from Rhode Island, delivers remarks at the South Carolina Democratic Party state convention in Columbia, South Carolina, on April 25.

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Photos:Lincoln Chafee's political career

Chafee answers questions from reporters after speaking at the South Carolina Democratic Party state convention on April 25.

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Photos:Lincoln Chafee's political career

Chafee greets a member of the audience after speaking at the South Carolina Democratic Party state convention on April 25.

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Photos:Lincoln Chafee's political career

Chafee answers questions from a reporter after speaking at the South Carolina Democratic Party state convention on April 25.

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Photos:Lincoln Chafee's political career

Chafee, left, then governor of Rhode Island, stands on stage with stage manager David Cove during Day One of the Democratic National Convention in Charlotte, North Carolina, on September 4, 2012.

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Photos:Lincoln Chafee's political career

Chafee, a U.S. senator at the time and a member of the Senate Foreign Relations Committee, asks questions during a hearing on Capitol Hill in Washington on September 21, 2006.

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Lincoln Chafee, a Republican-turned-independent-turned-Democrat former governor and U.S. senator from Rhode Island, said on Thursday, April 16, that he's running for president as a Democrat. But his spokeswoman said the campaign is still in the presidential exploratory committee stages.